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Graphic Studies of Ultimate Analyses of Coals
| Author: | Ralston, Oliver C. |
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| Year: | 1915 |
| Document Type: | N/A |
| SUDOC: | I 28.7:93 |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Technical Paper 93 |
| Subject: | Coal -- Analysis. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc66444/ |
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